We looked at ordering spiles, but were not patient enough to wait. We used sections of half inch pex. Cut a notch in the top so that you can hang a milk jug from it. They work really well and a five foot piece of pex is about $2. and made 10 taps.
As a mead brewer, I've been thinking of fermenting some maple sap that's been boiled down a bit (somewhere between straight sap and syrup), would be interesting to try walnut as well ..... damn... not another project
Pine sap may not be good for syrup, but it makes a WONDERFUL incense! Also, pine resin is what is used to flavor Retsina wine.
For people in the south, y'all could try making sorghum syrup. In fact I remember reading about an old Yankee gentleman that would make up a bunch of maple syrup every year, then take it in to the general store and trade it straight across for sorghum syrup. I guess we always want what we can't have.